Abstract
Double electron capture from He, H2, Ar, Xe atoms into 120 keV O6+ and from He into 80 keV C4+ ions is studied by 0°-Auger electron spectroscopy. Pronounced intensities of Coster-Kronig (L 1−L 23 n,n=5...14) decay lines indicate strong evidence for electron-electron interactions in a one-step two-electron transfer process. Lines from successive capture in two steps during a single collision populating quantum numbersn, n′ according to a classical barrier model are of comparable intensity. Predictions of final state populations from barrier model and Landau-Zener description are compared with experimental results.
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Mann, R., Schulte, H. Evidence for one-step double-electron capture in single collisions of slow O6+ and C4+ ions with rare gas atoms. Z Phys D - Atoms, Molecules and Clusters 4, 343–349 (1987). https://doi.org/10.1007/BF01384887
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DOI: https://doi.org/10.1007/BF01384887